Hot-water heater.



No. 773,927. PATENTED NOV. l, 1904.

mm wm m u.- M AM3. l 367 UNITED STATES Patented November 1, 1904.

PATENT EETCE.

HOT-WATER HEATER.

SPECIFICATION forming part of Letters Patent No. 773,927, dated November 1, 1904.

Application filed October 17, 1901. Serial No. 78,904. (No model.)

To (all whom, 7125 may concern,.-

Beit known that I, CHARLES A. CLEVELAND, a citizen of the United States, residing at IVOrcester, in the county of I/Vorcester and Commonwealth of Massachusetts, have invented a useful Improvement in Hot-Tater Heaters, of which the following is a specification, accompanied by drawings, forming a part of the same, injvhichW Figure 1 represents a side elevation of a hot-water heater embodying my invention.

Fig. 2 is a central vertical sectional view with the crown-sheet shown in full. Fig. 3 is a transverse sectional view on line 3 3, Fig. 2. Fig. 4 is a sectional view of a portion of the crown-sheet and of one of the heat-conducting rods, and Figs. 5 and 6 show a modified form of the heat-conducting rod.

Similar reference-letters refer to similar parts in the different views.

My invention relates to a hot-water heater intended for heating water for household and barbers uses and for similar purposes; and it consists in the construction and arrangement of parts, as hereinafter described, and pointed out in the annexed claims.

Referring to the accompanying drawings,

A represents a shell or case, preferably domeshaped and inclosing a water -chamber A. The shell A is provided at its lower edge with a flange A2, to which is bolted an annular baseplate B, and between the base-plate B and the iiange A2 a circular crown-sheet is clamped, forming the bottom of the water-chamber.

The annular base-plate B is provided with a concentric depending circular flange B, within which is located a burner D, adapted to burn gas, oil, or other convenient fuel. The upper surface of the annular base-plate B is recessed to provide a concentric air-space B2 beneath the crown-sheet C, and the recessed portion of the base-plate is provided with a series of holes B3 to permit the products of combustion and the heated air ascending upwardly through the depending flange B to impinge against the under side of the crown-sheet and pass through the air-space B2 and holes B3. In some cases it may be advisable to provide holes Bt in the depending flange B, as shown in Figs. l and Q.

The crown-sheet C is preferably made from a plate of sheet-steel, and secured therein by soldering or otherwise is a series of heat-conducting rods E, preferably of copper and projecting a short distance below the crownsheet, with their lower ends E entering the space inclosed within the depending flange B. The upper ends extend upwardly for a considerable distance into the water-chamber A. Water under pressure is admitted to the Water-chamber A/ through the pipe F, which communicates upon the interior of the shell with a coiled pipe G, containing two or more coils and encircling the series of heat-conducting rods E. The coiled pipe G may be open at its upper end G', or the upper end may be closed and the pipe be provided with a series of small holes G2, through which water is admitted to the chamber A/ from a water-main or other source of water-supply.

At the top of the shellA is a pipe H, through which heated water can be withdrawn from the chamber A.

The heat-conducting rods E, as represented in Figs. 2 and 3, are cylindrical in crosssection throughout their entire length and are driven. through holes in the crown-sheet and soldered thereto. The shape of the heat-conducting rods may, however, be varied and other means of attachment to the crown-sheet may be adopted.

In Figs. 5 and. 6 a modified form I of heatconducting rod is shown, having a screwthreaded attachment to the crown-sheet. The heat conducting rod I is cylindrical at its lower end and is provided with a screw-thread I, by which it is screwed into a screw-threaded hole in the crown-sheet and against a shoulder I2. The upper portion of the heat-conducting rod I is fluted, as at I3, for the purpose of increasing the surface in contact with the surrounding water.

What I claim as my invention, and desire to secure by Letters Patent, isH

1. The combination in a water-heater, of a crown-sheet and a series of heat-conducting rods passing through said crown-sheet and entering the water-chamber of the heater, a water-supply pipe entering the bottom of the water-chamber and having a coiled section IOO nclosed in the Water-chamber and surroundclosed in said depending Hang-eend a series f lng' said heat-conducting' rods W1th the lnner of holes 1n szud annular plate communlcamng end of the Water-supply plpe eommumcatmg wlth its recessed surface, substantlally as de- Wilh the Water in the Water-chamber. scribed.

5 lThe combination of a sll1ell or case 11n-o Dated this 111th day of October, 1901. Vic ec With a flange, an annu at' plate bo tec l s to said flange and provided with a recess in l CHARLES A' (JLEVELAND its upper face, a crown-sheet, clamped be- Vtnesses: tween said plate and said flange, L depending,` RUFUS B. FOWLER,

IO flange on said annular plate, and a burner n- M. M. SCHUERMANN. 

